Portable power station



FIG. 1 is a front elevational view of a portable power station showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front perspective view thereof;

FIG. 8 is a rear perspective view thereof; and,

FIG. 9 is a bottom perspective view thereof.

The broken lines shown in the drawings depict portions of the portable power station that form no part of the claimed design. 

CLAIM The ornamental design for a portable power station, as shown and described. 